Low-power programmable digital filter

Details Low-power programmable digital filter Low-power programmable digital filter

2005-09-13

2005-09-13

Vo, Don N. (Department: 2631)

Pulse or digital communications

Equalizers

Automatic

C375S350000

Reexamination Certificate

active

06944219

ABSTRACT:
A low power programmable digital filter adapted for use with a telecommunications system transceiver. The digital filter includes a first finite impulse response filter section for receiving an input signal and having a first transfer function. An infinite impulse response filter section is connected to the first finite impulse response filter section and has a second transfer function. A second finite impulse response filter section is connected to the infinite impulse response filter section and outputs a filtered output signal in response the receipt of the input signal by the programmable digital filter. The second finite impulse response filter section has a third transfer function. A programmable coefficient is included in the first, second, and/or the third transfer function.

REFERENCES:
patent: 5404375 (1995-04-01), Kroeger et al.
patent: 5694422 (1997-12-01), Kaku et al.
patent: 5926513 (1999-07-01), Suominen et al.
patent: 5963273 (1999-10-01), Boie et al.

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